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author | Tom Lane <tgl@sss.pgh.pa.us> | 2017-09-26 13:42:53 -0400 |
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committer | Tom Lane <tgl@sss.pgh.pa.us> | 2017-09-26 13:43:12 -0400 |
commit | 06852f21544c061cb4d4b53bbe16a647a12dd311 (patch) | |
tree | 9a793f0dd274740c9dde5c860cb466dd9b383478 /src/backend/utils/adt/numeric.c | |
parent | 05297416f362b50985b3cd3473778fbb0842295d (diff) | |
download | postgresql-06852f21544c061cb4d4b53bbe16a647a12dd311.tar.gz postgresql-06852f21544c061cb4d4b53bbe16a647a12dd311.zip |
Fix failure-to-read-man-page in commit 899bd785c.
posix_fallocate() is not quite a drop-in replacement for fallocate(),
because it is defined to return the error code as its function result,
not in "errno". I (tgl) missed this because RHEL6's version seems
to set errno as well. That is not the case on more modern Linuxen,
though, as per buildfarm results.
Aside from fixing the return-convention confusion, remove the test
for ENOSYS; we expect that glibc will mask that for posix_fallocate,
though it does not for fallocate. Keep the test for EINTR, because
POSIX specifies that as a possible result, and buildfarm results
suggest that it can happen in practice.
Back-patch to 9.4, like the previous commit.
Thomas Munro
Discussion: https://postgr.es/m/1002664500.12301802.1471008223422.JavaMail.yahoo@mail.yahoo.com
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